Aria the Natural

Thoughtful stories aimed at the heart examining small happiness and sorrows in our lives. A tad too "lighthearted" for some, but any story that can warm people's hearts and sometimes bring tears are notable series worth checking out. Absolutely beautiful music and scenery rendered gently makes for a perfect escape for the tired. 

they are both with great stories / backgrounds for each episodes, mushishi is more supernatural though 

My favourite thing about Haibane-Renmei was the world the Haibane lived in. I liked seeing how the people there lived and worked, but felt there wasn't enough attention paid to theirdaily lives or interests. The major frustration I had with the series was that we knew so little of the town's history - its own story. ARIA managed to follow up with that beautifully. These series are similar not in their mood (Haibane-Renmei is MUCH darker in its plot and development, whereas ARIA stays light throughout) or even their characters, although some similarities are present, but in the introduction of the world that they live.  read more 

-Both anime's moods, animation, and flow of the story/plot are very lighthearted. -Both are slow-paced and centered around Slice of Life over Comedy. -Both have the calming quality. 

they're is a quiet animes, simples things and discovery of wonderful place and people.  

Both have the same kind of music, water theme, clothing, and characters. The overall light-hearted, carefree mood of the show, that you can just relax to, is also similar. 

This is related because both shows are extremely relaxing to watch. It's comedy but it doesn't just focus on that, it's the extremely likeable characters that stand out. So if you had a bad day or just want to relax from some sad Anime or one with a lot of Action, this one should be a good watch. (This does also inculde every other season of Aria or Hidamari Sketch) 

they both travel ( around the city or around the world ) and discover great stories / backgrounds :) 

Both are episodic slice of life tales, and whilst Aria may the more popular, Binchou-tan has a charm all of it's own - a worthy rival to the series. 

Both shows have that relaxed feel to them, and they're both about a place where small miracles happen. Kokoro Toshokan is a bit more story oriented towards the end of the series, but generally each episode is a stand alone story. 

Aria and Sketchbook share the slice of life genre. The pace of these two is incredibly slow and they are both very good, especially after a tiring day at work. I also noticed that cats play quite a big role in both of these. Even the company who animated these two is the same. The only major difference between these two would be the sci-fi found in Aria.